摘要
许多手持终端设备都需要一种轻便、紧凑的接收和发射天线,FPC天线以重量轻、厚度薄等特点收到广大设计师的青睐。为获得适合尺寸、带宽和增益的天线,提出一种以FPC软材质为集成平台,采用传输线与天线为一体化设计,在保持天线大小不变的情况下,通过增加耦合枝的方式增强辐射单元能量耦合,从而有效改善带宽和提升增益。传输线与天线一体化设计可以有效利用天线空间,改善端口特性。通过仿真与实际测试,天线带宽满足在470 MHz~510 MHz工作频段,S11<-10 dB。在490 MHz处S11<-12 dB,有效增益0 dBi。
Many handheld terminal devices require a light and compact receiving and transmitting antenna.FPC antennas are popular among designers because of their light weight and thin thickness.In order to obtain an antenna with suitable size,bandwidth and gain,an FPC soft material is used as an integrated platform,and the transmission line and antenna are used as an integrated design.While maintaining the size of the antenna,the energy coupling of radiating unit is enhanced by adding coupling branches,which effectively improves bandwidth and gain.The integrated design of transmission line and antenna can effectively use the antenna space and improve the port characteristics.Through simulation and actual testing,the antenna bandwidth meets 470 MHz~510 MHz,S11<-10 dB.S11<-12 dB at 490 MHz,the effective gain is 0 dBi.
作者
孙南
闻志国
姜帆
李延
王玉净
邹建
宋亚
Sun Nan;Wen Zhiguo;Jiang Fan;Li Yan;Wang Yujing;Zou Jian;Song Ya(State Grid Key Laboratory of Power Industrial Chip Design and Analysis Technology,Beijing Smart-Chip Microelectronics Technology Co.,Ltd.,Beijing 100192,China;Beijing Engineering Research Center of High-reliability IC with Power Industrial Grade,Beijing Smart-Chip Microelectronics Technology Co.,Ltd.,Beijing 100192,China)
出处
《电子技术应用》
2021年第1期11-15,共5页
Application of Electronic Technique
关键词
耦合枝
带宽
一体化
回波损耗
coupling branches
bandwidth
integration
return loss
